An interesting exposee, check it out ***
*IT WAS BETWEEN THE DEVIL AND THE DEEP BLUE SEA - why Daura became the scape goat: The true story.*

If you believe that the President was aware of Daura's sack, then you are correct. If you believed that he was very comfortable in doing it, then you must still be "Dreaming in Neverland". Buhari had no other option but to let his cousin go, else he would have gone himself.
No one can really be sure, and tell us why NASS was invaded by hooded DSS, some said that Saraki invited them to whip up sympathy from Nigerians. While others are saying that the DSS invasion was instigated by President Mohammadu Buhari to frustrate PDP lawmakers from gaining access into NASS, so that the few APC lawmakers can gain entrance and impeach Saraki.
Mind you, Akpabio has already resigned as minority leader and was positioning himself as the next Senate President. That guy messed up though.
The above is just to drop indices, now below is the reason why Lawal Daura became the sacrificial lamb. Let's go, stay with me please.
*What Happened?: the Drama Unfolded*
VP "Osibande", sorry Osibanjo was never in the know about what was to go down yesterday at the NASS, just like always. He is always at the sidelines when it comes to issues like this and dramas of this magnitude.
Osibanjo, was very irritated after the plan went wrong at the NASS, and fumed after the UK government got the wind of the drama, and was angry that he was never consulted nor partook in the planning and execution.
He therefore called Daura to Aso Villa, Daura feeling that the President was much in the know, went there with his head high. "nothing dey happen".
Immediately Lawal Daura met the VP, he was hit with so many questions and summarily embarrassed by the VP, asking him why he will do such a thing without his knowledge, and what/who/ gave him the orders and why did he do it.
Lawal Daura being very powerful and also Buhari's right hand man, bellowed back at the VP, insulted him and almost walked out on him, telling him that he can go to hell, and can never do anything about it.
Osibanjo was "so vexed" that he immediately put a call to Buhari, threatening to resign if Lawal Daura was not sacked. He gave Buhari 20 minutes to approve the sacking of Daura or else, he will watch his resignation live on CNN.
Buhari knowing that immediately the VP resigns, that Saraki (as the third in the line) will become the acting President, he therefore called Osinbajo back and told him to sack Duara. Buhari knew that if Saraki becomes the acting President, he will never be allowed back into Nigeria.
It is therefore abundantly clear that *Daura was sacked to save Buhari's head,* and that the President was so much in the know and directed Daura's sack because he "WAS IN BETWEEN THE DEVIL AND THE DEEP BLUE SEA". In a tight corner and had no other alternative to save his presidency. And Osibanjo, we all know, does not have the "agbakara' to solely sack the former DSS helmsman.
Now we know what happened that led to what happened.
*The political Fallout of the Situation:*
The cabal has been demystified by the sack of their "Drone Agent d'tour' Lawal Daura. Daura was not a mole in this government but a hawk and a hatchet man for APC. Oshiomole gave the order but Daura failed to clear with Ag President and that was his undoing.
There's serious tension in the villa because Lawal Daura is the arrow head for APC 2019 elections plan. And the north cannot use this new Ag DSS head optimally and reinstating Daura at the risk of Tinubu and osinbajo pulling out is the new dilemma for Buhari.
The third in command in DSS is one Delta guy. The fourth in rank is a Yoruba man. So osinbajo has 'moved the cheese' and put the north in hyperbole and back to the drawing board.
Very interesting game of power in Nigeria.